Effect of Corrosion on Shear Behavior of Reinforced Engineered Cementitious Composite Beams
Publication date
2015Keyword
CorrosionEngineered cementitious composites
ECCS
Normal concrete
Reinforced concrete beam
Shear
Performance
Strength
Peer-Reviewed
YesOpen Access status
closedAccess
Metadata
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The objective of this study was to evaluate the effect of corrosion level on shear behavior of engineered cementitious composite (ECC) beams. Reinforced normal concrete (R-NC) specimens with compressive strength equal to the ECC specimens were also used for control purposes. Ten reinforced concrete beams (five ECC and five NC) with dimensions of 150 x 220 x 1400 mm (5.91 x 8.66 x 55.12 in.) were manufactured for the study. Using accelerated corrosion through the application of a constant current of 1 ampere, four levels of corrosion were established at 5%, 10%, 15%, and 20% of mass loss of the reinforcing bars. To ensure the highest probability of shear failure mode, all beams were tested under a four-point loading system with a shear span-effective depth ratio of 2.5. General structural behavior, strength, stiffness, failure mode, and energy absorption capacities of ECC and R-NC beams subjected to different corrosion levels were evaluated and compared. Experimental results showed a high correlation between calculated mass loss and measured mass loss in reinforcing bars due to accelerated corrosion. Compared to NC, ECC beams exhibited significantly higher strength, stiffness, and energy absorption capacity, along with superior performance in terms of the restriction of damage caused due to corrosion. The increase in corrosion level negatively influenced the structural behavior of the ECC beams tested.Version
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Sahmaran M, Anil O, Lachemi M et al (2015) Effect of Corrosion on Shear Behavior of Reinforced Engineered Cementitious Composite Beams. Aci Structural Journal. 112(6): 771-782.Link to Version of Record
https://doi.org/10.14359/51687749Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.14359/51687749